Apparatus for assembling insulating glass



June 2, 1936. J H 2,042,835

APPARATUS FOR ASSEMBLING INSULATING GLASS Filed Aug. 20, 1935 I5 Sheets-Sheet 1 INVENTOR.

m/ol-wv H Fo/ W 7 AT ORNEYS.

aFume 2, 1936. J. H. FOX 2,042,835

APPARATUS FOR ASSEMBLING INS ULATING GLASS F iled Aug. 20, 1935 5 Sheets-Sheet 2 5 0 5 f'? 9 2, I? 3 u w INVENTOR.

BY m

TTORNEYS.

J. H. FOX

Julie 2, was.

APPARATUS FOR ASSEMBLING INSULATING GLASS Filed Aug. 20, 1955 5 Sheets-Sheet 3 W/ o H N ,H w

k M ATTORNEYS.

Patented June 2, 1936 UNITED STATES PATENT OFFICE APPARATUS FOR ASSEMIBLING INSULATING GLASS Application August 20, 1935, Serial No. 37,035

4 Claims.

The invention relates to apparatus for assembling insulating glass which ordinarily consists of two sheets of glass with an interposed spacer of resilient material, such as rubber, at the edges of the sheets and a frame of U cross section fitting around the edges of the sheets to add strength and rigidity to the unit and maintain the spacer under compression, so that it will provide a proper seal. The invention has for its objects the provision of an improved press for placing the spacer under compression to permit of the application of the U frame (1) which can be used without danger of breaking the glass (2) and which indicates to the operator the pressure applied so that the apparatus may be employed with precision and without loss of time. One embodiment of the invention is illustrated in the accompanying drawings, wherein:

Figure 1 is a front elevation partly in section of the apparatus. Fig. 2 is a side elevation also partly in section. And Figs. 3 and 4 are enlarged sectional detail views.

Referring to the drawings, I is a pair of scales having the platform 2 and the beam cabinet 3 in which the weight reading of the pressure applied to the scale platform is registered. Any suitable type of scales may be employed, or other registering device, which will give an indication of the downward pressure applied to the platform. Mounted upon the scale platform is a secondary platform comprising an openwork frame made up of .the four corner angles 5, 5, etc., suitably tied together and carrying at their upper ends the wood deck 6. The members 5, 5 are adapted to rest at their lower ends upon the corners of the scale platform and are guided to proper position by corner clips I, I, etc., which fit over the corners of the scale platform.

Mounted upon the deck 6 is a rectangular box or frame comprising the plate or board 8 of the same dimensions as the deck 6 and the four vertical plates 9, 9 and I0, I0 which have around their upper edges cushioning strips II, as indicated in Fig. 4. The plates 9, 9 and I8, I 0 may be attached to the plate 8, or may merely rest thereon without attachment. This box-like structure constitutes the support for the pair of sheets which are to be formed into the insulating unit. As indicated in Fig. 4, the glass plates l2 and I3 have between their edges the spacer I4 of rubber, or other cushioning material, and the frame or box which supports the lower sheet upon its upper edge is of such size and shape that the supporting strips II come relatively close to the inner sides of the spacer.

The frame which applies pressure to the upper side of the glass plate I2 is similar in construction and dimension to the one which supports the plate I3, being made up of the metal side members I5, I5 and I6, I6 mounted on the plate or board I! and having their lower edges provided with cushioning strips I111. The plate I! may be attached to the side members I5, I5 and I 6, I6 or may merely rest thereon without attachment. 1

The means for applying pressure to the frame 4 member which rests upon the sheet I2 comprises the head I8 of metal which is moved up and down by means of the screw I9. The screw I9 is threaded through a nut 20 supported by the carriage made up of the depending frame channels 2|, 2| tied together at their upper ends by the channel 22 and provided with the pairs of wheels 23 which are secured to the channels 2|, 2| by means of the brackets 24, 24. These wheels ride upon the rail 25 suitably supported from the superstructure, including the I-beams 26. This provides ,a means whereby the presser device, including the head I 8, may be moved to and from operative position, as shown in Figs. 1 and 2, the head being moved from such operative position when it is desired to place or replace the units to be pressed. The screw I9 has a turning handle 2'! and at its lower end is swiveled in a two-part collar 28 by means of a head 29. The presser head I8 is provided with a block 30 at its central portion having a head 3| swiveled in the two-part collar. The ball 32 is interposed between the block 30 and head 29 to reduce the friction when the screw I9 is rotated to cause the head I8 to apply pressure to the insulating unit therebeneath.

7 In using the press the parts are positioned as shown in Figures 1, 2 and 4 and the operator then rotates the screw I9 by means of the handle 21 forcing the presser head down and compressing the spacer M which lies between the glass sheets at their edges. The operator gradually applies pressure in this way until the indicating device of the scale registers the proper pressure which will, of course, depend on the size of the unit and the character of the spacer. By way of example, in a unit employing a rubber spacer of average resilience, the pressure applied per linear inch of spacer will be about thirty pounds, so that if the spacer is inches long, as would be the case of glass sheets 25 inches square, the proper pressure as indicated by the scales would be about 3000 pounds. When this pressure is registered the operator applies the U-frame which holds the glass sheets in assembled relation and maintains the spacer under compression. Various forms of holding frames may be employed for this purpose, such as an integral channel construction, or a channel construction such as that indicated in Fig. 4, wherein the frame consists of a pair of opposing L- shape members 33 and 34 which-have their base portions'35 and 36 interlocked, asshown, and held in assembled relation by means of wedges 31. The wedges themselves may be locked by machine screws which extend through the flange 35 and into the wedge, this particularform of frame constituting no part of the present invention which is directed tothe press for compressing the spacer of the unit preliminary to applying any suitable form of a holding frame.

The use of the scale for indicating the pressure applied to the unit greatly facilitates .the operation and avoids breakage incident to the accidental application of toougreatr pressure-by thegpressen head 13. In thiswayfithewpressure, as indicatedby the scales, serves to inform the operator when the spacer is-compressed sufiiciently to receive the U-shape. frame, so that it is unnecessary toapply a cut-and-try method involving successive rotative operations upon the screw I9 to bring the, plates [2 and. I31 close enough to receive the edge frame. .After the required pressure for a certain sized unit .isdetermined, the operator can be sure that the glass plates are spaced properly to receive the frame when a certain known' pressure. is registeredupon the scales. It will berundestood that the use of the press is. not limited :to the employment of scales as an indicating device. a Standard scales are preferablywemployed,.butany suitable indicating means may be associated with the platform in such way as to give anindication when acertain pressure .is. ap'plied to :the unit supported upon the platform. The rectangular frame madeup. of the sections 9, 9 and l0, In is shown asisupported uponthe openwork platform which in'turn restsnupon the scale platform. This is desirable .asthe'scale platform is, in many cases, not large enough to take care of a wide range of sheets, but it will be understood that if: desired,:the open frame-made up of the'members 9, 9 and ID, ill-might rest directly upon the scale platform itself.

' What I claim is:

1. 'In apparatus for assembling a'pair of glass sheets with an interposed spacer of yielding material between the edges thereof, a horizontal yielding indicator platform,=pressure indicating meansioperated thereby, an open frame of rectangular shape carried by the platform-for supporting'the 'glasssheets adapted to be positioned -"-'yi'elding indicator platform, pressure indicating -..means operated thereby, an open frame of rectangular ishape carried by the platform for supporting the glass sheets adapted to be positioned so that its-sides are in parallel with the edges of the. glass sheets and adjacent thereto, a second frame above the platform having its sides in :opposition to the sides of the first frame and adapted to engage the upper face of the upper sheet of glass, a carriage mounted for lateral movement above the platform,.and screw means on. the; carriage for ;moving. the. second: frame downwardly.

. .3. In; apparatus for assemblinga pairof: glass sheets-.w-ithaninterposed spacer of yielding material between .the edges thereof,...a horizontal yieldingindicator platform, .pressure indicatingmeans operated thereby,.an open framerof rectangular shape carried by'the platform for.

supporting the. glass sheetsadapted tobe positioned' so that itssides are in parallel with'the edges of the glass. sheets andadjaoent thereto, a second frame above the platform having its sides in opposition to'the sides -of the first frame and adapted to engagethe upper .face of. the upper sheet of glass, a carriage mounted for lateral movement above the platform, a vertical screw threaded in the carriage, anda head swiveledon .the lower end of the screw and adapted to apply pressure to the second frame-whenthe screw is rotated tomove it-downwardly.

4. In apparatus for-assemblinga pair of glass sheets with an interposedspacer of yielding materialbetween the edges thereof, aset of-..scales having a horizontal platform, a horizontal yielding indicator platform, pressure indic'ating means operated thereby, an open frame of rectangular shape carried by'the platform forsupporting the glass sheets adapted to be positioned sothat its sides are inparallel with the-edges of the glass sheets and adjacent thereto, a second-frame above the platform having itssides in opposition to the sides of the first frame and adapted to engage the upper face of the upper sheet of glass, and 'means' for forcing said second frame downwa'rdly.-

JOHN -I-I5' FOX. 

